Lubricator



Aug. 31, 1943. E. M. GREEN 2,323,004

LUBRICATOR Filed May 22, 1941 7 Sheets-Sheet l IN VENTOR.

BY E ma M 4166 1943- E. M. GREEN 2,328,004

LUBRICATOR Filed May 22, 1941 7 Sheets-Sheet 2 INVENTOR.

BY mm v Aug. 31, 1943. EM. GREEN 2,328,004

LUBRICATOR Filed May 22, 1941 7 Sheets-Sheet 3 INVENTOR.

'7 Shets-Sheet 4 4 e INVENTOR $11? .za

E. M. GREEN Aug. 31, 1943.

LUBRICATOR Filed May 22, 1941 1943- E. M.YGREEN 2,328,004

1 LUBRICATOR Filed May 22, 1941 7 Sheets-Sheet 5 E. M. GREjEN Aug. 31, 1943.

LUBYRICATOR Filed May 22, 1941 7 Sheets-Sheet 6 6 a g m /%H 5 vlllllflllll'llll 1/4 INVENTOR. BY mi m; 4 W R" rezv Au 31, 1943. E. M. GREEN LUBRICATOR Filed May 22, 1941 7 Sheets-Sheet 7 I a m 2r 2 43 4 o u m 6 7 8 73 m 5 D Q HHHH Hm Full 313/0 .am fin :u L k a a 9 2 0 2 m. 7 7 mm a 3i I 1 u 0 2 a M w 9 4mm \HMH MW |N\. 271 3 m m 6 f 3 .w 3 9 2 bastion engines.

Patented Aug. 31 1943 a V wnarcn'roa 1 w .Emmet M. Green, Los Angeles, calif assignor-to 1 Lincoln Engineering Company, St. Louis, Mo., a corporation 01' Missouri Application Ma 22, 1941, Serial No.1 s 94,s90"

lubricating ,The present, invention: relates 1m systems-and more particularly to lubricators adapted to1supplyf lubricant to the valves and cylinders of internal combustion engines;

7 issued D 30. 1941. 1 An object of the presentinventionis to provide a simple inexpensive and eflicient device for supplying lubricant to the valves and cylinders of 1 internal combustion engines. Anotherobject of the present invention is to'provide a device which other object-of the presentinventiori is to provide a devicewhich'may'be readily adjusted to give either initial lubrication or continuous lubricationiot the valves and cylindersoi lntemal coin- I For. the purpose of illustrating the invention, there are shown in the accompanying dr'awings forms there'oi which are atpreserit preferred, "sincethe same have been found in practice to 1 g givle satisfactory and reliable resultspalthough it is to be understood that the various instrumentalities of'w'hich the invention consistscan will supply a predetermined amountof lubricant tothe valves and cylinders of internal combustion 1 enginesonly when the engine is cold. Still mthe sight-feed shown in Figure 6'.

Figurefi8 represents avertical cross-sectional 5 Claims. g 101. 123 196) schematic view of an automobile. eqijiippedwith for provided at the instrument panel of' the automobile. 1 l

. Figure 61 represents a more or: less schematic view similar to that ofFigure5 but showing am .other embodiment oithe present inventionin which the flowregul'ator valve is'provided in a single unitwith the sight-ieediat the instrument panel of the'automobile. m

Figure"? represents a frcntelevational view of the unit containing1therflowregu1ator valve and 1' view along the'line' 8- 8 of Figure 7.

be variously arranged and organized and that the invention i not limited 'to the precise arrangements andorganizations of the instrumentali 'ties as hereinshbwn and described.

Figure 1 represents; a verticalcross sectional view on a somewhat reduced scaley of one embodiment of the present invention as it appears immediately after the start ofca cold motor. Figure 2 represents a vertical cross-sectional viewof the embodiment shown in Figure 1 as it appears after the measured charge :of lubricant has been delivered tothe intake manifold and after the feeding chamber has been replenished.

1 Figure 3 represents "a vertical cross-sectional :view of the embodiment shown in Figures 1 and 2 as it appears shortly after the motor has stopped and-during the transfer of lubricant from the g ieeding chamber to the supply chamber. 3

Figure 4 represents a vertical cross-sectional yiewsimilar to Flgures l, 2 and 3 as theembodi- 1 the reservoir through the feeding chamber to the supply chamber 101Gb 1 YFigureB represents afragmentary more or less Figure 9 represents-a vertical cross-sectional Q 1 view along the line 9-9 of Figure 7. 1. 201

Figure 10 1 represents a vertical cross-sectional 'view of another embodiment of the present invention in whicha timing wireis providedfor regulating the time required for transferof lubricant from the feeding chamber to the supply .l chamber; thereby to regulate the. minimum 'periodof time whichmust elapse after the motor is stopped and before it is restarted, in order that an additional charge of lubricant be delivered to the motor upon such restarting.

T Figure 11 represents a verticalcro'ss-s ectional view similar to that of Figure 10 but showing a somewhat different embodiment of the present inventionin which a diiferent means is provided 1 to permit the insertion of the timing wire. 1 1

Figure 12 represents a vertical cross-sectional} view of an integral unit which contains the feeding chamber and the supply chamber and which may be formed,for example, as a die-castingiand which may be used in place ,of'the individual 'feeding and supply chambers shown in Figures *1 to 4 inclusive; a different means for permitthe unit shown in Figure 12.- 1

1 Figure 14represents an enlarged fragmentary vertical cross-sectional view of the wall of the engine suction passageway showing one form -of connectionbetween the lubricator discharge conand thence to the int'ake mani duit and l the passageway.

view along the line l5l5 of Figure 14. 5 In one embodiment of the-present invention, illustrated. more particularly in Figures 1 1 to 4 g 'inclusive',e I'may provide a container 320 which Figure 15 represents a vertical cross-sectional serves as a lubricant reservoir and which has an upper threaded neck2l. The neck Zl is adapted to be screwed into a threaded socket 22 of a head 23. I

Said head 23 maybe provided with one or more openings 24 whereby the lubricator' may be bolted or otherwise fastened to any con venient point of the automobile, preferably to the wall 25 which separates the engine coinpartment 26 from the operators compartment 21, as shown in Figures and 6. I

A cylindrical feeding chamber 28 is supporte within the uppermost part of said container 120' from said head 23 by means of a bolt 29 which passes through an opening 38 in said head 23" and which passes through'a ce'n'tralopening 31" ,I

in thebottom wall 32 of thefeeding chamber 26;

a nut, 33 being provided on the lowermost threaded portionZM of said bolt 28 and being adapted to be tightened to hold said feeding chamber Qtfirnil? against a gasket 35 which "is fitted within the socket22i opening 36' is provided in the uppermost portion of saidfeeding chamber. 28 to establish I communic'ation between said feeding chamber 28 and said container 20. I

" .A cylindrical supply chamberniit is suspended within said container 2!! from said head 23 by :means .of a bolt which passes through an opening 39 in said head 23" and which passes through a central opening 40 in thebottom wall 4! of said supply chamber; axnut 42b'eing providedupon the lowermost threaded portion 43 of said bolt sll and'being adapted'to'be tightened to hold said supply chamber 31* firmlyfagainst said gasket 35. Gaskets 9lan-d-92 are provided above the nuts-33' and 42 respectively :to ensureupper portion of-said container and has an opening 63 in the upper end of its shorter arm 64.

A tube I6 2 is fitted within the opening Gil and extends downwardly within said supply chamber 37 a predetermined distance below the bottom wall 32 of the feeding chamber 28 and has a restricted opening 65 in its lower end. A socket 65 is provided within the upper portion of said head 23 and containssuitable filtering material 67; A vertical'opening 63 extends downwardly within said head 23 from said socket 66 and communicates with the socket 22.

I A J -shaped tube 69 has its longer arm ill fitted within the verticalopening 68 and has a small aperture H in theupper end of its shorter arm TZa-n'd extends to the'bottom of the container 29. A' tube 13 is fitted about the upper end of the arm 12' in sealing relationship therewith. and

- extended upwardly therefrom to a point adja- .a-fiuid-tight sealat thebottom' of the feeding 1 and supply chambersiq Said sup ly" chamber '31 has'a greater axial-dimension than that of the feeding chamber 28' and extends downwardly Within said container 20' a predetermined distance belcwthe bottom wall: 32 of said feeding fAriopening 44* is provided in: the bottom wall 32' of the'feeding chamber 2'8'rand' an opening Wis-provided in theibotto'm wall 41 'of the supply A tube 46' connects the openings 44 and 45.

An 'apertured collar 4! isprovided' within said feeding chamber 28 directly above and surrounding said opening 4'6. A suitable fllter':48 which may be a-wire mesh or felt scre'en-"or'which may be of anybther'cohyentional construction is provided within said apertured' 'collar T41. Atube 49 extends upwardly from the uppe'rportion 'of cent'to the gasket the uppermost end of said tube being bent downwardly. as 'M an'd extendingiwithin the .up'perinost portion of said feeding chamber28'; "A-srnall openingxlai's' pro vided i111=thelower end ofcthe tube'l3 atapolnt adjacent to theopening'ltin' the arm t2 of the leveloi J-"shaped tube-'69 and below-the normal lubricant within the bontairierldi I An internally-threaded" socket TSi'is provided upon the upperjside of' the 'head 2 3 and suitable filtering material 'Flis disposed within the lowermost/portion of said socketi'lfii A passageway 1-8 extends downwardly within 'said' head" 23 from said socketlfi andcommunicates with the supply chamber 31;, A passageway ls passes through the socket 165 and establishes communication between the'atmosphere and said. socket. a point just above thefilteringzrriaterialz ll;

An externally-threaded fiowregiula'torvalve 8'!) lis screw-threadedly I disposedlwithih said socket said? collar 41'. and is open at its upper, end 50 which is positioned at the'uppermostportionof said feeding chamber '281 A conduit 51' isc'o'nnecte'd tc'the intake manifol'd SZ or to some other convenient point in the suctien passageway the engine 53 and iscohelected at its other end to a threaded so'ck'e't' 54 in the head 23 by means" of the threaded collar, 7 55b Apassageway 55 extends downwardly from the socket fi l a'n'd terminates in oppositely-extend-in'gheri zontal' passageways 51 and58. Pas- 58 and 60* extend downwardly from the outermost ends of the passagswa'ys: 5:1. and

58 respectively" and communicate with the socket 22. Q A- J-shaped tube (it has its; longer arm 62 fitted within the passageway 59 and extends "down wardly a relatively short. distance within the' .1-5 and is adapted; to cl'osej'ofi the, passageway 13 when said valve 30 is in its innermost position thereby to cut-.ofi; communication between the supply chamber 31 and the atmosphere. When said valve 80 isunscrewedythe passageway; -l8

r-is uncovered and communication ,isure-established' betWeen said'supply chamber and the atmosphere. I

A- sight-feedindicator sl m be prcvided within-the conduit-5H7 to. provide aumeans'for checking onthe performancegof the lubricator. esaid indicator 8t may contain a window 82 of glass, or crystal, plastic or the like through which the flow of lubricant fromthe-lubricatortothe intake manifold ma-y be observed.

Said indicatonmay be placed just below or up on thedash-board 83 of the automobile, as shown in Figure 5, or at anyv other convenient point: within-the operators ccmpartment'fil ojr the'en- I :gine compartmentit.

j Theoperationzof the embodiment shown in Figures 1 to at inclusive will now be described.

*Whenthe fiojw'regulator valve-39 is in its-open position soth'at the supply chamber 31 is in com- 7 munication-w'ith the atmosphere through the passageway 13, the socket/it and the passageway thelubricator of the present invention will j operate intermittently to supply a' predetermined amount :of lubricant to the valves. and cylinfdei's of the engine only whenthe enginevis eration of the: engine; supplyw no additional lubricant; Vifhenthe flow'regu-lator valve .88 is. in --1ts open position, the lubricatorof the present Started cold and. will, upon the-continued opinvention will not supply lubricant to the engine when the engineis started while. still warm:

'1 When the engine is started,

. the intake manifold 52 is transmitted to the conduit |,through the sight-feed indicator 8|, and to the socket 54, the passageway 56. and the l As illustrated in Figure 1, created sucks in air from theinterior of the consupply chamber 31.

as for example, after the engine has been stopped and is then restarted after a period of 5 or 10 upon the start of the engine only after a predeterminedtime has elapsed since the last stopping of the engine; means being provided whereby the lubricator can be adjusted to vary. the time which must "elapse between the stopping and starting ofthe engine. in order that the lu bricator againsupply lubricant.

In Figures 1 to 4 inclusive, the flow of lubricant is indicated by solid arrows while the flowof air is-indicated by dotted arrows; alternate solid and dotted arrows indicating a mix ture er lubricant and air. i

1 When the motor is stopped and cold, the lu-.

bricator of the present. invention would appear as shown in Figure 1;. the iarrowsbeing disregarded forthe time being. i i Thus, it can be seen, when the engine is stopped and cold, a supply of lubricant 84 is present in the lower portion of the container 28 and additionallubricant; is present in the lower portion of the supply chamber 31 andin the tube 48 connecting the supply chamber 31 with the feeding chamber 28. It will be'notedthat the relative sizesof, the supply chamber and feeding chamber are so adjusted that; at-this stage, the feeding chamber is empty and the surface of the lubricantin the supply chamber is at the samelevel. as or at Ya slightlylower level than the bottom of the feeding chamber 28 land sothat thetube 46 is just filled with lubricant. Before the engine is started, the submerged portions of the tubes13 and 68 would alsobe filled withlubricant (as shown in Figure3); Figure 1 showing their appearance after the engine has i been started.

passageways 51 and 58.1 i i the suction thus tainer 28 through the opening 63 in the arm of the J-shaped tube 6|. At the same time lubricantis sucked upward from the supply chamber 31 through the opening 65 and the tube I64 due to thefact that atmospheric pressure is present upon the surface of the lubricant inthe The air from the J-shaped tube 6| and the lubricant from the tube I64 mix within the passageway 56 so that a mixture of air. and lubricant passes through the conduit 5| to the intake manifold 52. J v

minutes. 'The lubricator will supply lubricant the suction from a the tube 49 being to permit escape of air to pre .15

vent disturbance in the flow in chamber 28) under the pressure of the atmosphere exerted throughtheopen flow regulatorvalve 88; this being possible since the feeding chamber 28 is under sub-atmospheric pressure inasmuch as the suction from the opening 63 is transmitted to the feeding chamber through theopening 36 therein. 1

- Thus, the amount of lubricant delivered to the intake manifold is predetermined and depends uponthe lubricant contained within the supply chamber 31 between the original height A oflubricant and the height B of the opening 65; that isg'the distance AB times the effective cross-sectional area of the supply chamber 31 (the volume of the bolt 38 and the volume of the walls of the 1 tube I64 being deductedin calculating effective cross-sectional area). The remaining lubricant contained within the supply chamber 31 between the leveljB and its bottom!) being transferred to the feeding chamber 28:, as hereinabove de -g scribed.

By regulating the lengthof the tube In and thus changing the level B of the opening 65 it is possible to vary the amount of lubricant delivered. tothe intake manifold.

Continued operation of the enginewill suck in only air through the openings 63 and 65; it. being applicantsbelief that, under normal conditions of operation, it isjunnecessary to provide lubri- As sub-atmospheric pressure is created within the upper portion of the container 28, air is sucked in through the filteringmaterial .61, the socket 66 and the. J-shaped tube 69 until the level of liquid within theearm 18 of the tube 69 is depressed beyond the lowermost point 85. of the tube 69 whereupon the air risesupwardly within thearm 12, through theaperture 1| and upwardly within the tube 13, thus functioning as an airlift which sucks in lubricant through the opening 15 and carries a mixture of. air and lubricant upwardly within the tube 13 and out of the bent end "thereof and into the feeding chamber 28. c Thus, after the pressure in the. upper portion of the container 28 has been sufficiently lowered,

'cantin this "fashion after an initial starting pe-' riod. has elapsed. Continued operation of the engine will result in operation of the. air-lift giving continuous transfer of lubricant from the container28 to the feeding chamber 28. Excess lubricantwill overnew from the feeding chamber 28 through the opening 36, and back into the container 28.

During such continued operation, air will be continuously sucked in through the open flow regulator valve 88 into the supply chamber 31 from which a portion of the air will pass upwardly through the tube I64 and into the conduit 5| while the remaining air passes through the tubes 43 and 49 into the upper portion of the feeding chamber w, throughthe ,opening 36, into the container 28 andfi'nally into the opening 63 in the J-shap ed tube 6| and into the conduit 5|.

The air which sucked inthrough the filtering material 61 and into the air-lift is delivered from theend 14 of the tube 13 into the upper part of the feeding chamber 28 from which it passes the tubes 69 and 13 function as anair-lift to transfer lubricant from the container 28 toythe feedingchamber 28.

through the opening 36 into the container 28,

through the opening 63 in the J-shaped tube 6| and into the conduit 5| u Thus, during such continued operation of the engine, the lubricator will be in the condition illustrated in Figurez in which the supply chamber contains nojlubricant and the feeding chamberis filled with lubricant. The pressure within the supply. chamber 31 is greater than the pressure within the feeding chamber 28' due to the fact that more air is supplied-to the .o pbly'cham-. perm (due to the gi' eatercanacity. of the. flow insulator valve at) than is supplied to the upper portion of the feeding chamber :28; Durin 'this airft; pr ssures w thi the ,feedinsfand 1 supblv 011a ott I rncsr 'l i c a s wnm F e -"e the int. cant with n. the feed n c m er .23 sir sdcwnthroush the aper ure n the o lar 4i and ube 46 and i o thesupp y chamber 3? until the, level of lubricant within the supply cham er 3 again reaches the h i ht A. as sh wn in F gu e, 1

. ,The size of the apertures within, the collar M I can b adi te to ary he time requ r fo brioagntto from the feeding chamber 28 to the. supply turcsin the collar 4? may be of such size that it wo ld resu ts- 30 m nutes or su i nt lu ric nt .lnlBr-and'that it would require 60 minutes-to reachitheclowel nsshown in Figure l.

Thus, if the cn-ginewere to be re-started, after ha insbe n ste -red c less 30 minutes.

' lubricant would be sucked up into the conduit 5| and to the intake manifold upon such reestarting. f,"@I-l cllfi other hand, the engine were to be jre started, after having bleenstopped for more than 60 minutes, a full charge of lubricant would be elelivered to the intake manifold upon such re tar n I 5 If the engine were to be ifs-started, afterhaw been topped r 45 min t sUapPmXimateIY half of a full charge of lubricant would be delivercd to the engine, sincethe level of the lubriwithin the suppl chamber 31 would be apps atelyhalfeway between the levels A and 13,6 own in'jFi'gure l, The relationshi between time of the risein level within the supply chamber 3'! is not a' direct relationship since therate of flow would be more rapid at the beginning than at the end of the draining period due to the-fact that the difference in head is r ater at t e be i n n t a at t nd.

However, the size ofthe aperture in the collar '41 and the'size of the feeding and, supply chambers can readily be calibrated to give accurate results.

By varying theheight B of the opening 65 and amber 31. For example, the alper- 7 un into the supply chamber 3'! to reach the,

all)

seasons f 23, he operator can remove he-tube ita from the neck 86 and can then inser a timin wir 88 so that said timing, wire'partially bstructs the now of lubricant through the neck 86 and into the tube filth-a. In: this way,- the timerequired ior. thetransfer oflubricant i fgrom-the feeding chamber 28 to the supply chamber 31, is increased. By providingv a plurality of suitably calibrated interc angeable timing Wireslhavin different'diameters, it is possible .to' regulate the timeior such transfer, as desired. I i v l' The embodiment shown in Figure 111 does not include a flexible tube but, instead, includes the tube t6 which'is generally J-shaped and also in:

thereby possible to insert and removetand to, interchange timingawires rnerelyby unscrewing the-plug flit-and: without having to unscrew the containerZfl from the head;23.=; x V a r I will now5describe, the functioning of thellern'e bcdirnent shown in Figures 1' -t0;4i inclusive when the flow-regulator valveidii is closed to give a continuous flow of lubricanttothe intake maul.- told as long as the'engine is operating; a When the flow regulator valve 3911s closed the lubricator, before the :startingof. the engine, is

in generally the "samc -conditionsas shown-in Flglllol.t.-i i. m i

, When the engine isstarted; the suction-is transmitted from the intake manifold to 'theboni- (wit 5! "and to tube I64. M-

1 As described 'hereinabove, in connection with 7 Figures 1 and 2,the suction thllSZtrullStnittGd will suck airfrom the upper portionzof the container 28 through the opening 63 in-the, u+shaped tube 5i and will suck up lubricantlfrom the supply chamber 8? through the opening-6590f the tube ite-i; the air-lubricant mixture which is formed by varying the size of theapertures in the collar H, it is possible to provide any'desired relationship between thestopping period and the amount of lubricant delivered upon i e-starting. I i As shown in Figures 10 and 11, it is possible to change the construction illustrated in Figures 1 to Bin'orderto permit the operator readily to "vary'the lubricantso delivered upon re-starting without changing either the collar 4? or the tube 16.4." I

- 'In Figure 10 the tube 46.a is made flexible and is fitted about downwardlyeextending necks 85 and 87" formed at the openings i t and d5 respectively.

u "By unscrewing the container 20 from the head in the passageway tlcbeing carried-through the conduit 51 to'the intake manifold. 1 .1

Asdescribed hereinabove, the" sub-atmospheric pressure produced within the containerzo will cause air to enter through the filtering material -61 and to operate the. airslift toztransier lubricant from the container 2%] to the feeding chamis closed, a continuous :supply of lubricant mixture is delivered to'the intake manifold or as I long as the engine is operating; thelubrioantair mixture being continuously transferred from the container 29, through the feeding chamber 2.3, the tube 45,the supply chamber 31,.andthe conduit iii to the intake'manifold c l After the engine has been stopped, thelubricater remains inthe same co'nditionshowniu Figure 4, since air entering throughthe filtering the ,J-shaped tube iii and the In this way, when the flow regulator valve Gt! 7 material 61 into theupper portion of the con tainer is distributed through the opening 36 I p to the feeding chamber 28 and'through' the open in; 63; the J-shaped tube BI, the passageways]?! and 58,- the tube I64 and; the opening Site the supply chamber 31 so .thatthe container 20; the

feeding chamber 28 and the supplychamber 31 all reach atmospheric pressure;

Itcan beseenthat the operator ofthe auto= mobile may readilyjshift from intermittent to continuous lubrication or ivice versa, as desired, merely by closing or opening the: flow regulator valve flll. This is particularly desirablefsince, under special and unusual operating conditions, it may be preferable to provide a continuous flow of lubricant whereas, normally, initial flubrica: tion would besuflicient. j i i The lubricator 'of the present invention has A tube I02 is connected to the socketfllH y 7 means of the threaded collar I03. The ether end the decided advantage of enabling the driver to use a continuousfiow for a certain period of time in'order thoroughly to flushorpurge the motor.

Thereafter, the use of intermittent flow will I keep the motor at the high stage of efliciency produoed by the"previouscontinuous treatment.

Formerly, this could be accomplished onlybyway i of a time-consuming and expensive operation of removing the spark plugs or the air-cleaner of the engine. i i

i "Thelubricator is adapted to be connected-by oi the conduit 5i, with th eengine 53 "at any suitable point'in the intake manifold 52 the'reo; at or beyondthe carburetor; so that dur- 111: engine operation the manifold suction or de pression iscomrnunicated to the" lubricator. I The conduit 5| may be connectedi'into the ngine "slictio'nfipassage in anysuitable manner; although theparticular form oi attachment shown inFi g ures14 and has been founjdfto be especially advantageous because of its simplicity andadaptab'ility topractically all installations; The particularadvantage 01 this typeof connectionfis that it permits attachment oft-he conduit? at any gasketed joint between the intake" manifold "(and the engine orfcarburetor, without requirQ I extraparts'whatsoever.

stand inserting theflattenedend 93 between the usual gaskets 94" and 95 and 'withintransvers registeringfgroovesj 96 and 91 ionnjed in the gas specialparts or fittin s; oriaract any newsstand-s5 respectively, afluid-tight jointis about the flattened end 91 i the conduit iif when the parts yea and; as, are boltecljtogether tocompress'jthe gaskets. These parts and!!! may. for example. be sections of the intake mani I told I2 orthe Joint partsat the connectionbe I tween the manifold and" carburetor, b, By out;

u as Indicatedat ion, thepipeis eire tivei r vented Irornbeing puiledout oithe joint. i

1 Instead of providing the now regulator valve directly'upon thejhead 23, it is possible to position the valve upon a common unitwiththe sight teed indicator so that"the valve is more readily accessible to theoperator as shown in Figure 6; "l,8and'9. W a

' In this embodiment, thebight-ijeed and-"flow mostedg or the instrument panel or dashboard and is similar to the socketillshown in Figures 1 W0 4 inclusive except-that thexhori'zorital pase sageway'Hisomittedr I on when the valve ao-'-a is shut; 2 I I ,may be of glass or crystal or plastic as described threaded collar I04, to a passageway-{I05 in the unit IIII'leading toa threaded opening I06.

Another passageway I01 extends upwardly from theopening I06 to a socket 38in which is contained a screen I09 and a strip or felt IHI or other suitable filtering material for cleaning the air to be sucked into thelubricator;

A now I regulator valve is screw-threadedly engaged within the threadedxopening I06 and is adapted 'to'seal the passageway I05 when the valve isscrewed intoits'innerrnost position.

Thus, the flow regulator valve 8ll--a functions in exactly the same way as'thevalve 80; the sup ply chamber 31 being open to the atmosphere when the valve BIT-a is open" and being closed 'I'heunitIllI also contains thewindow 8 2 which hereinabove to indicate, to the operator, whether or not lubricant is flowingfrorn the lubricator,

through the conduit 5I,to theintalre manifold 52. shown particularly in Figure 9; suitable connections are provided for the conduit- 5I'q leading to the lubricator and the conduit 5Ib leading to the intake manifold 5-2.

While, in Figures 5 and "6, the lubricator is shown as being attached to thQBDQiDE-f-SidEOf the i wall 25 separating the engine compartment 26 fromthe operators'compartment 2I, it is possible to place the lubricator at any" other "convenient point, as for example, upon f the operator's side Ofthe wall 25. I-hi latter positioninyfact, may

the feeding and supplyvcliambers as asingle integral unit, as to i-example, by die-casting. I

die-cast, includes the generallycylindricarsupply chamber n3 having the bottomwallflll inwhich isthe central opening II5 whereby the'unit II2 may be supported irom theihead by'a boltzand generally annular iee dingYcham ber I I B is I V 1 provided abo'ut the upper portion of'the cylin-; .e drical supplywchamber II3 andcommunicates thrwithfby means of'a vertical pas a a 1 anda horiz ontal passageway a e i .i i

- The outermost end of the horizontalpassageway threaded bolt "II9 whichmaybe removed to permitj the insertion of aFtiming wire 88 a for *regulator unit IOI may be clamped to the lower:

regulating the time required to transfenlubrig chamber II 3.

I 'It"istpossible toidispense with"thej"flow regulator valve in the embodiment shown in Fig leading to the supply chamber, blocked 'aridclosed off to providecontinuous injection ofglubricant where operatingqconditionsarejsuch astomake this desirable. t It is also possible tolplaceeither thesight-feed;indicator 8I'or the unit IIII ,at a point other than the dash board or instrument having to get out of the r v distinctcylindrical members connected by the tube AB, it is possible to form;

ures'l "to, 4 inclusive andto'havewtheopening The present ipventidga ma be e mbodieq in pthef specific fqtms withouti'departiin fr qr r n the spii it qr ess'ergt ialattributes thereof, and it is theyefpre desired that the presept embodi n ne rgts .b's pn ite 1 es s c sa t st ative m; iio't '1"e'sft'rictive rei ey ene e being had t the sn sl s r th -t mflt 'th f tiinsq sbfilntion tqi ndicate the scope of the iriyelition.

The ihv'entiOfi' havilig been hereinabdve scribeiwhat ish iebi c'lai'fi'zedas new and ies' ire'd' tb be protested Qfitfiislgtflit, is} I f 1; An e g e lu ca or iz i in lflbricaat yes'ervciii a'lublrijcapt feed chamber fgiisposed Wit i e pper tha i a p s a klefit'ed thereto; fer transferring ,lglgrflespt fr m said es r i t a q feted c a b duri Operation qr the engine; a clqsed'suppl'y Chg/11111961: 's l W t n safli r ervvsirsan fixteit ie dw w w sinib nd Sa e amber a o t t mt e a i 'y-sq ine ted 'thie n: ine and separately cqztu n unicatingv with the 9 CI 1 .re e vqi and w h.

' o ion. qfsa i Simply themes a d i ad q'. 's m lta busly' t su k ad HD1291? Pq p o a d es rvoi a w I, im rmedi tww n of aid l i c am er a n9 .T man all rqper h i a v v t i aid pfily cham r and orie as r aid ubr tatqr a a ing adalf'i edf PInd d amt.

* said supply chamber.

7 ne b iaF r i lu in ial mam portion of said l teser vpir am; with an intermeanua -Operable ai l e W in hsu n .P

d m 'norbiqn 1 f am" u ply ha b r, n. .;.a

Supply c am f -v A n in 11 iwtwin9 s i az b czint e r a lubr ca t ed l thambi d m ed sati re sr o an ented thereto, an w vqasn sq hinus is s V911 and aqa P9 trans e 11w? a z rom sa re oi 9. said fe bam rv'fi. ring, o rat o f h in lssss s btly ha lb di s d h s d r ssrvq and e end n o nward therein beyond saidlfeedp laamber, a passageway connecting ldwe 2 1s: ,9? s i e d hambst and said sup'ply chamber and permitting flowof lubricant therepetween, a remevable com lubriant re ent? within the upper part :o f said reseryoig a feed chamber; arid. saigl. up'ply lhamb'er, andp m m g' flow for-6mm ant therlebfetwfe I br'atiched suction "nioniitnt brierativ el icbgneqteq strictirig means disposed within saidpassageway and adapted to reduce the i'ate-o i-;flow of lubricant therethrqggh, a brahehed suction: gopdpit operatively on rgected to the engine and com; municating with the upper portion .of said reser 1 n 'wi nwtm d w pQ t' Q o a d supply cham e and. mainu e e b e1 valve qoim'ectdtb-saiq sugplyphamber. 4. An engi rie lilb 9? t mm m t m Ya A-Y' sus enfis r m sa d b am? ubr wfi eed am si a ndsq from said head and disposedwithin thefupper na fi Qi said; r s q r Y s th fi a t z t Q fiqi 5 135333 I r ira d adaptg to tiat isjfexjflqpnieant rpm said reslervpirft'tj said; me namb idmin f operation, bi the en'- me', a; ms upplyTgfiamb sus e ded. tram said heat arid eitel 'lding w'it aid reservonf d nw rd b n'd; saidi l r'chamber, a. p ss e wa connecting. thflQWItPQItjons of said fe'eq chambexiandjsai supply. chamber and; permit-3 tni'g flow of l bricant thltebetween, afbranqhed.

s ct' dnid li x nwwe y c mi edi to e gine arid separatell coinniynijcatihg with, the} 11p.- pers 'brtion of 7 said rese ivoir and: with an, interlil di t qr q b S id supp y chamb r, S id conduit bi g. adapted; simultaneously tolsl c i fluid from said pp ibrL'ofWsaid.reseryoir and 'ffroi n' said ilr iteifi mediatev pqitign. 'ofv said' slm; ply chamber, arid a manually qperable-airi Valve gonnectect tqsaid supply chamber, and; ogening to the exteriqr 'Qf said, 1 10 at mg ad btedtqh q el e wh'c y saidsieed $1 61.

- lsirand'jsaid supplycham ber.aretkeptatgenera ii I Iythe sam'e redpced p itefss rqfldlirin wopera mi oil the engiln e, said val sing adapted be pene m; a mit airt qf a s su ple-y chambe q th l kee Sai up ly hamber at an a pr'e i 5-A 1 vn. r l l tbr1 lwi i m d h i' it reservoir," 'aff'lubiicant feed, Jcham r disppsd within the "upper' pa t',bf..s'%i1{ r's 1:v0ir and v r hersto. "In a v I l f i i b i it from id: $W i T t0 iha rin operati'p'njof .the. engi1 1 e-, ,Icl osed 'sl'lpply chamber i s d withi aid es jo an i xbs g d i s .s t A .ti n oisa e d cliamperl n said sup y chamber; anmp rmit ting' flow of lubricant therebetweenfa biphed: suction conquitvoperatively cqnneeted. to th ei enpa w nn t d to sa d nected to said supply chamber and opening to the exterior of said lubricator, said valve being adapted to be closed whereby said feed chamber and said supply chamber are kept at generally thesame reduced pressure during operation of the engine to permit continuous drainage of lubricant from, the feed chamberto the supply chamber and continuous transfer of lubricant from said intermediate portion of said supply chamber through said conduit to the engine, said valve being adapted to be opened to admit air to said supply :chamber whereby said supply chamber is kept at an appreciably higher pressure than said feed chamber during operation of the engine to prevent drainage of lubricant from the feed chamber to the supply chamber during operation of the engine and thereby to interrupt transfer of lubricant to the engine after an initial period of engine operation and after the level of lubricant in said supply chamber has dropped below said intermediate portion thereof; andto permit equalization of pressure and drainage of lubricant from said feed chamher to said supply chamber after termination of engine operation thereby gradually to accumulate an initial charge of lubricant in said supply chamber, the respective sizes of said feed chamber and supply chamber andthe rate of drainage from the former to the latter being predetermined to provide a full initial charge of lubricant-upon restarting of engine operation only after the engine has been stopped sufliciently long to permit complete drainage of said feed chamher and to provide no initial charge of lubricant upon restarting of engine operation when the engine has been stopped insufficiently long to permit the level of drained lubricant in the supply chamber to reach the intake end of the suction conduit therein and to provide a lessthan-ful l initial charge of lubricant upon restarting of engine operation when the engine has i been stopped for a period intermediate the firstmentionedand second-mentioned periods of time.

EMME'I' M. GREEN. 

